Lifting-machine



(ModeL) D..P. TRUMBLEi.

LIFTING MACHINE.

Patented May 24, 1887.

UNITED STATES PATENT OFFICE.

DAVID P. TRUMBLE, OF BRADNER, OHIO.

LlFTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 363,439, dated May 24, 1887.

Application filed December 22, 1886. Serial No. 222,313. (ModeL) To all whom it may concern.-

Be it known that I, DAVID P. TRUMBLE, a citizen of the United States, residing at Bradner, in the county of Wood and State of Ohio, have invented certain new and useful Improvements in Lifting-Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to devices for lifting carriages, wagons, and other vehicles for the purpose of cleaning or painting the same or lubricating the axles; and it consists in certain novel features, hereinafter described and claimed.

In the accompanying drawings, which fully illustrate my invention, Figure 1 is a perspective view of my improved device in its ele vated position, and Fig. 2 isaperspeotive view showing it closed.

Referring to the said drawings by letter, A designates four rails of any desired size or materials, which are arranged in pairs, the rails of each pair being connected by the cross-bars D. The rails of the upper pair are provided at one end wit-h the handles 1) and at the other end with the rollers'I, which serve to facilitate the placing of the device in position to raise the vehicle. The twp pairs of rails are flexibly connected by means of the links B, which have their opposite ends journaled upon the cross-bars D, adjacent to the inner sides of the rails A. These links B are held in their proper relative positions and strengthened by the braces G, secured to the same.

In order to reduce the friction on the crossbars D, I provide the links B, near their opposite ends, with anti-friction rollers, (indicated at (2,) which are held in the said links by the plates a, secured to the sides of the links, and in which the ends of the rollers are journaled.

E E designate a pair of divided braces or lock-levers, which have their opposite ends pivotally secured to the upper and lower rails. The inner ends of each part of these lock-levers are cut away and beveled, the cut-away portions extending past each other and the beveled ends engaging, so as to form a rigid brace when the device is elevated, as shownin Fig. 1. The meeting ends of the two parts of these levers are pivoted upon a common crossbar, F, from which an operating-lever, G, extends through a staple, H, secured to the near cross-bar D.

The operation of my device is simple and will be readily understood. WVhen not in use, the several parts are in the positions shown in Fig. 2. When it is desired to use the device,

it is placed under the vehicle and raised to theposition shown in Fig. 1 by pulling upward on the handles b. When it is desired to remove the device and set it to one side, the locklevers E are folded by pressing on the lever G, when the device will resume the position shown in Fig. 2.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. In a lifting-machine, the combination of the rails A, arranged in pairs, the cross-bars connecting the rails of each pair, and the links connecting the cross-bars,and having anti-friction rollers in their opposite ends bearing on the cross-bars, substantially as set forth.

2. The combination of the upper and lower rails, A, flexibly connected, the divided locking-levers, and the operating-lever G, controlling the locking-levers, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

DAVID P. TRUMBLE.

Witnesses:

O. L. HARSEN, FRANK PRITCHARD. 

